List of Publications

Book

Koester D., Moehler S. (2005) 14th European Workshop on White Dwarfs, ASP Conf. Ser., 334 (665 pages)

Refereed Papers and Invited Reviews

Hot Stars in Globular Clusters

Hubrig S., Castelli F., De Silva G., Gonzalez J.F., Momany Y., Netopil M., Moehler S. (2009): A high resolution study of isotopic composition and chemical abundances of blue horizontal branch stars in the globular clusters NGC6397 and NGC6752, A&A496, 865

Moni Bidin C., Moehler S., Piotto G., Momany Y., Recio-Blanco A. (2009): A lack of close binaries among hot horizontal branch stars in globular clusters - M80 and NGC5986, A&A498, 737

Moehler S., Bono G. (2008): White Dwarfs in Globular Clusters, to appear in White Dwarfs, eds. M. Burleigh & R. Napiwotzki (Springer Verlag, ASSL)

Moehler S., Dreizler S., Lanz T., Bono G., Sweigart A.V., Calamida A., Matteo M., Nonino M. (2007): The Hottest Horizontal-Branch Stars in ω Centauri - Late Hot Flasher vs. Helium Enrichment, A&A475, L5

Moni Bidin C., Moehler S., Piotto G., Momany Y., Recio-Blanco A. (2007): Spectroscopy of horizontal branch stars in NGC6752 - Anomalous results on atmospheric parameters and masses, A&A 474, 505

Carretta E., Bragaglia A., Gratton R.G., Momany Y., Recio-Blanco A., Cassisi S., François P., James G., Lucatello S., Moehler S. (2007): Na-O anticorrelation and horizontal branches. VI. The chemical composition of the peculiar bulge globular cluster NGC 6388, A&A 464, 967

Gratton R.G., Lucatello S., Bragaglia A., Carretta E., Cassisi S., Momany Y., Pancino E., Valenti E., Caloi V., Claudi R., D'Antona F., Desidera S., François P., James G., Moehler S., Ortolani S., Pasquini L., Piotto G., Recio-Blanco A. (2007): Na-O anticorrelation and horizontal branches. V. The Na-O anticorrelation in NGC 6441 from Giraffe spectra, A&A 464, 953

Moehler S., Sweigart A.V. (2006): Observations of the Hot Horizontal-Branch Stars in the Metal-Rich Bulge Globular Cluster NGC 6388 - Indications of Helium Enrichment and a Lesson in Crowded Field Spectroscopy, A&A 455, 943

Ferraro F.R., Sabbi E., Gratton R., Piotto G., Lanzoni B., Carretta E., Rood R.T., Sills A., Fusi Pecci F., Moehler S., Beccari G., Lucatello S., Compagni N. (2006): Discovery of Carbon/Oxygen-depleted Blue Straggler Stars in 47 Tucanae: The Chemical Signature of a Mass Transfer Formation Process, ApJ 647, L53

Moni Bidin C., Moehler S., Piotto G., Recio-Blanco A., Momany Y., Mendez R.A. (2006) The lack of close binaries among hot horizontal branch stars in NGC6752, A&A 451, 499

Moehler S. (2004) Horizontal branch A- and B-type stars in globular clusters in The A-Star Puzzle, eds. J. Zverko, J. Ziznovsky, S.J. Adelman, & W.W. Weiss, IAU Symp. 224, 395

Moehler S., Koester D., Zoccali M., Ferraro F.R., Heber U., Napiwotzki R., Renzini A. (2004) Spectral Types and Masses of White Dwarfs in Globular Clusters, A&A 420, 515

Moehler S., Sweigart A.V., Landsman W.B., Hammer N.J., Dreizler S. (2004) Spectroscopic Analyses of the Blue Hook Stars in NGC 2808: A More Stringent Test of the Late Hot Flasher Scenario, A&A 415, 313

Moehler S. (2003) White Dwarfs in Globular Clusters - Progenitors, Successors and the Real Thing (Invited Review), in New Horizons in Globular Cluster Astronomy eds. G. Piotto, G. Meylan, G. Djorgovski, & M. Riello, ASP Conf. Ser. 296, 185

Moehler S., Landsman W.B., Sweigart A.V., Grundahl F. (2003): Hot HB stars in globular clusters - Physical parameters and consequences for theory. VI. The second parameter pair M 3 and M 13 , A&A 405, 135

Moehler S., Sweigart A.V., Landsman W.B., Dreizler S. (2002): Spectroscopic analyses of the "blue hook" stars in ω Centauri: A test of the late hot flasher scenario, A&A 395, 37

Moehler S. (2001): Hot Stars in Globular Clusters - A Spectroscopist's View (Invited Review), PASP 113, 1162

Moehler S., Landsman W.B., Dorman B. (2000): Blue horizontal branch stars in metal-rich globular clusters. II. 47 Tuc and NGC 362 A&A 361, 937

Moehler S., Sweigart A.V., Landsman W.B., Heber U. (2000): Hot HB stars in globular clusters - physical parameters and consequences for theory. V. Radiative levitation versus helium mixing A&A 360, 120

Moehler S., Heber U., Napiwotzki R., Koester D., Renzini A. (2000): First VLT spectra of white dwarfs in a globular cluster A&A 354, L75

Moehler S. (1999): Hot Stars in Globular Clusters, in Reviews in Modern Astronomy ed. R.E. Schielicke, Vol. 12, p. 281

Moehler S., Sweigart A.V., Catelan M. (1999): Blue horizontal branch stars in metal-rich globular clusters. I. NGC 6388 and NGC 6441 A&A 351, 519

Moehler S., Sweigart A.V., Landsman W.B., Heber U., Catelan M. (1999): Physical parameters of hot horizontal-branch stars in NGC 6752: Deep mixing and radiative levitation A&A 346, L1

Moehler S., Heber U., Lemke M., Napiwotzki R. (1998): Abundances of UV bright stars in globular clusters. I. ROA 5701 in ω Centauri and Barnard 29 in M 13 A&A 339, 537

Moehler S., Landsman W.B., Napiwotzki R. (1998): Hot UV bright stars in globular clusters A&A 335, 510

Moehler S., Heber U. (1997): What are blue tails made of? - Analysing faint blue stars in globular clusters, in The 3rd Conference on Faint Blue Stars, eds. A.G.D. Philip, J. Liebert, R.A. Saffer, D. Hayes, (L. Davis Press, Schenectady), p. 295

Moehler S., Heber U., Rupprecht G. (1997): Hot HB stars in globular clusters - physical parameters and consequences for theory. III. NGC 6752 and its long blue vertical branch A&A 319, 109

Moehler S., Heber U., Durrell P. (1997): Hot HB stars in globular clusters - physical parameters and consequences for theory. IV. sdB candidates in M 15, A&A 317, L83

Moehler S., Heber U., de Boer K.S. (1995): Hot HB stars in globular clusters - physical parameters and consequences for theory. I. M 15 and its faint blue horizontal branch with gaps, A&A 294, 65-79

Hot Subdwarfs in the Field of the Milky Way

Busso G., Moehler S., Zoccali M., Heber U., Yi S.K. (2005) Hot Subdwarfs in the Galactic Bulge ApJ 633, L29

Heber U., Moehler S., Napiwotzki R., Thejll P., Green E.M. (2002): Resolving subdwarf B stars in binaries by HST imaging, A&A 383, 938-952

Jeffery C.S., Drilling J.S., Harrison P.M., Heber U., Moehler S. (1997): The classification of helium-rich hot subdwarfs, A&AS 125, 501-510

Theissen A., Moehler S., Heber U., Schmidt J.H.K., de Boer K.S. (1995): Hot subluminous stars at high galactic latitudes.V. UV-spectra of binary and peculiar hot subdwarfs, A&A 298, 577-583

Colin J., de Boer K.S., Dauphole B., Ducourant C., Dulou M.R., Geffert M., Le Campion J.-F., Moehler S., Odenkirchen M., Schmidt J.H., Theissen A. (1994): Kinematics of hot subdwarfs, A&A 287, 38-42

Theissen A., Moehler S., Heber U., de Boer K.S. (1993): Hot subluminous stars at high galactic latitudes.IV. Physical parameters and distances of 18 hot subdwarf stars and their spatial distribution, A&A 273, 524-532

Moehler S., Heber U., de Boer K.S. (1990): Hot subluminous stars at high galactic latitudes.II. Physical parameters and distances of 37 hot subdwarfs, A&A 239, 265-275

Dreizler S., Heber U., Werner K., Moehler S., de Boer K.S. (1990): Hot subluminous stars at high galactic latitudes.III. Non-LTE analyses of extremely helium rich sdO stars, A&A 235, 234-241

Moehler S., Richtler T., de Boer K.S., Dettmar R.J., Heber U. (1990): Hot subluminous stars at high galactic latitudes.I. Spectra and Stroemgren photometry, A&AS 86, 53-74

Apparently Normal O- and B-Stars in the Galactic Halo

Ramspeck M., Heber U., Moehler S. (2001): Early type stars at high galactic latitudes. I. Ten young massive B-type stars, A&A 378, 907

Moehler S., Heber U. (1998): PG 1323-086 and PG 1704+222 - two post-AGB stars at high galactic latitudes A&A 335, 985

Schmidt J.H.K., de Boer K.S., Heber U., Moehler S. (1996): PG 0009+036 - a rapidly rotating normal B-star in the galactic halo, A&A 306, L33

Heber U., Moehler S., Groote D. (1995): HS 1914+7139 - a rapidly rotating massive B-star far away from the galactic plane, A&A 303, L33

Moehler S., Heber U., Dreizler S. (1994): PG 2120+062 - an apparently normal O-star at high galactic latitude, A&A 282, L29-L32

Conlon E.S., Theissen A., Moehler S. (1993): The nature of two blue stars in the galactic halo, A&A 269, L1-L4

Miscellaneous

Napiwotzki R., Christlieb N., Drechsel H., Hagen H.-J., Heber U., Homeier D., Karl C., Koester D., Leibundgut B., Marsh T., Moehler S.,Nelemans G., Pauli E.-M., Reimers D., Renzini A., Yungelson L. (2001): Search for progenitors of supoernovae type Ia with SPY, AN 322, 411

Koester D., Napiwotzki R., Christlieb N., Drechsel H., Hagen H.-J., Heber U., Homeier D., Karl C., Leibundgut B., Moehler S., Nelemans G., Pauli E.-M., Reimers D., Renzini A., Yungelson L. (2001): High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia progenitor project (SPY). I., A&A 378, 556

de Boer K.S., Altan A., Bomans D.J., Lilienthal D., Moehler S., Schwarz U.J., van Woerden H., Wakker B.P., Bregman J.N. (1994): Determinations of the distance to the complex C of High-Velocity Halo Clouds, A&A 286, 925-934

Technical Papers

Moehler S. (2007): Good News for MOS, MXU & Co. - The New Spectroscopic Pipeline for the FORSes, to appear in the proceedings of the 2007 ESO Instrument Calibration Workshop

Szeifert T., Reiss R., Baksai P., Deiries S., Izzo C., Jehin E., Kiekebusch M., Moehler S., O'Brien K., Pompei E., Riquelme M., Rupprecht G., Shen T.-C. (2007): FORS1 is getting Blue: New Blue Optimised Detectors and High Throughput Filters, The Messenger 128, 9-12

Freudling W., Moller P., Patat F., Moehler S., Romaniello M., Jehin E., O'Brien K., Izzo C., Depagne E., Pompei E., Naef D., Rupprecht G., Järvinen A. (2007): Towards Precision Photometry with FORS: A Status Report, The Messenger 128, 13-16

Nonino M., Bono G., Monelli M., Thévenin F., François P., Buonanno R., Corsi C.E., Iannicola G., Ferraro I., Pulone L., Moehler S., Smith H.A., Stetson P.B., Walker A.R. (2007): On the Calibration of Multi-object Spectrographs, ASP Conf. Ser. 364, 295

Percheron, I., Moehler, S. (2006): Quality control and instruments monitoring for the VLTI, SPIE Proc. 6270, 72

Moehler S., Seifert W., Appenzeller I., Muschielok B. (1995): The FORS instrument for the ESO VLT, in Calibrating and Understanding ESO and HST Instruments, ed. P. Benvenuti, p. 149

Boehnhardt H., Moehler S., Hess H.-J., Kiesewetter S., Nicklas H. (1995): Design Benchmarks of the FORS instrument for the ESO VLT, in Scientific and Engineering Frontiers for 8-10m Telescopes - Instrumentation for large telescopes in the 21st century eds. M. Iye & T. Nishimura, Universal Academy Press, Inc. Tokyo, Japan, p. 199

Appenzeller I., Duensing K.H., Fricke K., Gong S., Hess H.-J., Kiesewetter S., Kudritzki R.-P., Moehler S., Muschielok B., Nicklas H., Östreicher R., Roth M., Rupprecht G., Seifert W., Stahl O. (1993): FORS: A Multi-Purpose Instrument for the ESO VLT, in ESO Conference on Progress in Telescope and Instrumentation Technologies, ed. M.-H. Ulrich, 577-580

Conference Contributions

(no AG Abstracts)

Moni Bidin C., Moehler S., Piotto G., Momany Y., Recio-Blanco A., Mendez, R.A. (2009): The Lack of Binaries among Hot Horizontal Branch Stars: M80 and NGC5986, in Globular Clusters - Guides to Galaxies, eds. T. Richtler & S. Larsen, ESO Astrophysics Symposia (Springer Berlin Heidelberg) , p. 37

Moni Bidin C., Catelan M., Villanova S., Piotto G., Altmann M., Momany Y., Moehler S. (2008): Binaries among Extreme Horizontal Branch Stars in Globular Clusters, in Hot Subdwarf Stars and Related Objects, eds. U. Heber, C.S. Jeffery, & R. Napiwotzki, ASP Conf. Ser. 392, 27

Busso G., Moehler S. (2008): The UV Spectrum of the Galactic Bulge, in Hot Subdwarf Stars and Related Objects, eds. U. Heber, C.S. Jeffery, & R. Napiwotzki, ASP Conf. Ser. 392, 39

Moehler S., Dreizler S., Lanz T., Bono G., Sweigart A.V., Calamida A., Monelli M., Nonino M. (2008): New Views of the Hot Horizontal Branch in ω Centauri, in Hot Subdwarf Stars and Related Objects, eds. U. Heber, C.S. Jeffery, & R. Napiwotzki, ASP Conf. Ser. 392, 47

Napiwotzki R., Karl C. A., Nelemans G., Yungelson L., Christlieb N., Drechsel H., Heber U., Homeier D., Koester D., Leibundgut B., Marsh T. R., Moehler S., Renzini A., Reimers D. (2007): Binary White Dwarfs in the Supernova Ia Progenitor Survey, in 15th European Workshop on White Dwarfs, eds. R. Napiwotzki & M. Burleigh, ASP Conf. Ser. 372, 387

Nonino M., Bono G., Monelli M., Thévenin F., François P., Buonanno R., Corsi C.E., Iannicola G., Ferraro I., Pulone L., Moehler S., Smith H.A., Stetson P.B., Walker A.R. (2007): On the Calibration of Multi-object Spectrographs, in The Future of Photometric, Spectrophotometric and Polarimetric Standardization, ed. C. Sterken ASP Conf. Ser. 364, 295

Monelli M., Nonino M., Bono G., Walker A.R., Buonanno R., Caputo F., Corsi C.E., Dall'Ora M., Francois P., Moehler S., Munteanu A., Pulone L., Ripepi V., Smith H., Stetson P.B., Thévenin F. (2006): Stellar populations in the Carina dSph galaxy, MmSAI 77, 270

Busso G., Moehler S., Zoccali M., Heber U., Yi S.K. (2006): Hot Subdwarfs in the Galactic Bulge, Balt. A. 15, 25

Moehler S., Sweigart A.V. (2006): The Nature of the Hot Stars in the Bulge Globular Cluster NGC 6388, Balt. A. 15, 41

Moni Bidin C., Mendez R.A., Moehler S., Piotto G., Recio-Blanco A., Momany Y. (2006): Spectroscopic Search for Binaries among EHB Stars in Globular Clusters, Balt. A. 15, 53

Moehler S., Sweigart A.V., Landsman W.B., Hammer N.J., Dreizler S. (2005): Successors of White Dwarfs -- Blue Hook Stars and the Late Hot Flasher Scenario, in 14th European Workshop on White Dwarfs, eds. D. Koester & S. Moehler, ASP Conf. Ser. 334, 73

Napiwotzki R., Karl C., Nelemans G., Yungelson L., Christlieb N., Drechsel H., Heber U., Homeier D., Koester D., Kruk J., Leibundgut B., Marsh T., Moehler S., Renzini A., Reimers D. (2005): New Results from the Supernova Ia Progenitor Survey, in 14th European Workshop on White Dwarfs, eds. D. Koester & S. Moehler, ASP Conf. Ser. 334, 375

Chayer P., Fontaine G., Fontaine M., Lamontagne R., Wesemael F., Dupuis J., Heber U., Napiwotzki R., Moehler S. (2004): FUSE Observations of EC14026 Stars, Ap&SS 291, 359

Moehler S., Sweigart A.V., Landsman W.B., Dreizler S. (2004) Helium-rich EHB Stars in Globular Clusters, Ap&SS 291, 231

Napiwotzki R., Yungelson L., Nelemans G., Marsh T., Leibundgut B., Renzini A., Homeier D., Koester D., Moehler S., Christlieb N., Reimers D., Drechsel H., Heber U., Karl C., Pauli E.-M. (2004): Double degenerates and progenitors of supernovae type Ia, in Spectroscopically and Spatially Resolving the Components of the Close Binary Stars, eds. R. W. Hidlitch, H. Hensberge & K. Pavlovski, ASP Conf. Ser. 318, 402

Napiwotzki R., Karl C., Nelemans G., Yungelson L., Christlieb N., Drechsel H., Heber U., Homeier D., Leibundgut B., Koester D., Marsh T.R., Moehler S., Pauli E.-M., Reimers D., Renzini A. (2004): Close binary white dwarfs and supernovae Ia, in Compact Binaries in the Galaxy and Beyond, eds. G. Tovmassian & E. Sion, RMxAC, 20, 113

Napiwotzki R., Christlieb N., Drechsel H., Hagen H.-J., Heber U., Homeier D., Karl C., Koester D., Marsh T.R., Moehler S., Nelemans G., Pauli E.-M., Reimers D., Renzini A., Yungelson L. (2003): SPY - the ESO Supernovae type Ia Progenitor survey, ESO Messenger 112, 25

Moehler S., Sweigart A.V., Landsman W.B., Dreizler S. (2003): To Be or Not to Be a Late Hot Flasher, ANS 324, 79

Napiwotzki R., Drechsel H., Heber U., Karl C., Pauli E.-M., Christlieb N., Hagen H.-J., Reimers D., Koester D., Moehler S., Homeier D., Leibundgut B., Renzini A., Marsh T.R., Nelemans G., Yungelson L. (2003): Search for double degenerate progenitors of supernovae type Ia with SPY, in White Dwarfs, (Kluwer NATO Science Series II -- Mathematics, Physics and Chemistry), 105, p. 39

Ramspeck M., Heber U., Moehler S., Reid I.N. (2003): Spectral Analysis of Supra Horizontal Branch Stars in Globular Clusters, in White Dwarfs, (Kluwer NATO Science Series II -- Mathematics, Physics and Chemistry), 105, p. 155

Napiwotzki R., Christlieb N., Drechsel H., Hagen H.-J., Heber U., Homeier D., Karl C., Koester D., Marsh T.R., Moehler S., Nelemans G., Pauli E.-M., Reimers D., Renzini A., Yungelson L. (2003): Search for double degenerate progenitors of supernovae type Ia with SPY, in From Twilight to Highlight: The Physics of Supernovae Proceedings of the ESO/MPA/MPE Workshop held in Garching, Germany, 29-31 July 2002, p. 134

Moehler S., Napiwotzki R., Sweigart A.V., Landsman W.B., Dreizler S. (2002): Extremely Faint Blue Tail Stars in ω Centauri, in ω Centauri - A Unique Window into Astrophysics, eds. F. van Leeuwen, G. Piotto, & J. Hughes, ASP Conf. Ser. (Astronomical Society of the Pacific; San Francisco), 265, 247

Sweigart A.V., Brown T.M., Moehler S., Lanz T., Landsman W.B., Hubeny I., Dreizler S., Napiwotzki R. (2001): The origin of hot subluminous horizontal-branch stars in ω Centauri and NGC 2808, AAS 199, 137.04

Moehler S., Heber U., Napiwotzki R., Koester D., Renzini A. (2001): First VLT Spectra of White Dwarfs in Globular Clusters, in 12th European Workshop on White Dwarfs, eds. J.L. Provencal, H.L. Shipman, J. MacDonald, & S. Goodchild, ASP Conf. Ser. 226, 407

Landsman W.B., Moehler S., Napiwotzki R., Heber U., Sweigart A., Catelan M., Stecher T. (2000): A complete sample of hot post-AGB stars in globular clusters, in The Galactic Halo: From Globular Clusters to Field Stars, Proc. of the 35th LiegeInternational Astrophysical Colloquium eds. A. Noels, P. Magain, D. Caro, E. Jehin, G. Parmentier, A. Thoul, p. 515

Moehler S., Sweigart A.V., Landsman W.B., Heber U., Catelan M. (2000): Blue Horizontal Branch Stars in Globular Clusters, in The Galactic Halo: From Globular Clusters to Field Stars, Proc. of the 35th LiegeInternational Astrophysical Colloquium eds. A. Noels, P. Magain, D. Caro, E. Jehin, G. Parmentier, A. Thoul, p. 473

Landsman W., Moehler S., Napiwotzki R., Stecher T. (1998): A Complete Sample of Hot UV-Bright Stars in Globular Clusters, BAAS192, 540

Heber U., Moehler S., Reid I.N. (1997): Masses and gravities of blue horizontal branch (BHB) stars revisited, in ESA SP-402, p. 461

Heber U., Moehler S., Schmidt J.H.K., Dreizler S., Geffert M., Reid I.N. (1997): Apparently normal O and B stars at high galactic latitudes?, in The 3rd Conference on Faint Blue Stars, eds. A.G.D. Philip, J. Liebert, R.A. Saffer, D. Hayes, (L. Davis Press, Schenectady), p. 87

Moehler S., Heber U., Durrell P.R. (1997): Hot subdwarfs in M 15, in The 3rd Conference on Faint Blue Stars, eds. A.G.D. Philip, J. Liebert, R.A. Saffer, D. Hayes, (L. Davis Press, Schenectady), p. 463

Schmidt J.H.K., Moehler S., Theissen A., de Boer K.S., Heber U. (1997): Physical parameters and distances of field HBB stars, in The 3rd Conference on Faint Blue Stars, eds. A.G.D. Philip, J. Liebert, R.A. Saffer, D. Hayes, (L. Davis Press, Schenectady), p. 401

Moehler S. (1996): Hot stars in globular clusters, in Formation of the Galactic Halo ... Inside and Out, eds. H. Morrison & A. Sarajedini, ASP Conf. Ser. 92, p. 281

Johnson W., Benetti S., Turatto M., Garnavich P., Riess A., Kirshner R., Moehler S. (1996): Supernova 1996Z in NGC 2935, 1996, IAUC 6401, 1

Moehler S., Heber U., de Boer K.S. (1995): Hot stars in globular clusters, in White Dwarfs, eds. D. Koester & K. Werner, Lecture Notes in Physics 443, Springer Vlg. (Berlin, Heidelberg, New York), p. 268

Theissen A., Moehler S., Bauer T., Heber U., de Boer K.S., Schmidt J.H.K. (1995): Hot stars in Binary Systems, in White Dwarfs, eds. D. Koester & K. Werner, Lecture Notes in Physics 443, Springer Vlg. (Berlin, Heidelberg, New York), p. 271

de Boer K.S., Theissen A., Heber U., Moehler S. (1995): The scale height of blue subdwarf B stars, in Stellar Populations, IAU Symp. 164, eds. P.C. van der Kruit & G. Gilmore, Kluwer Acad. Publ., p. 403

Moehler S., Heber U., Saffer R., Thejll P. (1995): Hot Subdwarfs in Globular Clusters BAAS 27, 1704

Moehler S., Heber U., de Boer K.S. (1994): Hot stars in globular clusters, in Hot Stars in the Galactic Halo, eds. S.J. Adelman, A. Upgren & C.J. Adelman, Cambridge University Press, 217-227

Theissen A., de Boer K.S., Moehler S., Heber U. (1993): Subdwarf B-Stars and Binarity, in White Dwarfs: Advances in Observation and Theory, ed. M.A. Barstow, NATO ASI Series C Vol.403, Kluwer Academic Publishers, (Dordrecht, Boston, London), 91-98

Moehler S., de Boer K.S., Heber U. (1992): Weight Watching in M 15, in The Atmospheres of Early-Type Stars , eds. U. Heber and C.S. Jeffery, Springer Vlg. (Berlin, Heidelberg, New York), 261-263

Schmidt J.H., Moehler S., Theissen A., de Boer K.S. (1992): Looking for gaps, in The Atmospheres of Early-Type Stars, eds. U. Heber and C.S. Jeffery, Springer Vlg. (Berlin, Heidelberg, New York), 254-256

Theissen A., Moehler S., Schmidt J.H., Heber U. (1992): A statistical complete sample of hot subdwarfs, in The Atmospheres of Early-Type Stars, eds. U. Heber and C.S. Jeffery, Springer Vlg. (Berlin, Heidelberg, New York), 264-266